Re: [Xen-devel] [PATCH 0/6] xen,xend,tools: NUMA support for Xen

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 11 Jul 2006, at 16:35, Ryan Harper wrote:

> Reposting the latest patches, no significant changes since May when I
> last received feedback.  I've done some simple overhead and performance
> numbers for these patches.
>
> Measuring NUMA allocator patch overhead via balloon driver and DOM0
> involved starting DOM0 with all memory (4G) and ballooning down (256M)
> as a starting point, [1]tracking the time it takes to balloon back up
> to full memory.  The test was done with and without NUMA patches.
What sort of box are these numbers taken from? If it's not a NUMA 
system then the slowdowns are rather poor. We're particularly 
interested in not slowing down non-NUMA and small-NUMA (e.g., AMD K8) 
x86 systems. They are what we really want to see measurements from.
 -- Keir


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